Home / 212,070.42-318,104.82-54,298.62

Finding the Fourth Proportional to 212,070.42, 318,104.82 and 54,298.62

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Solution

The fourth proportional to 212,070.42, 318,104.82 and 54,298.62 is: 81,447.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,070.42 : 318,104.82 = 54,298.62 : x
  2. Step 2: Convert to fraction form
    212,070.42/318,104.82 = 54,298.62/x
  3. Step 3: Cross multiply
    212,070.42x = 318,104.82 × 54,298.62
  4. Step 4: Simplify right side
    212,070.42x = 17,272,652,741.35
  5. Step 5: Solve for x
    x = 17,272,652,741.35/212,070.42
  6. Step 6: Final answer
    x = 81,447.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.